1611820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{397}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 4011840

約数和(自身を除く): 2400020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 397, 406, 580, 794, 812, 1015, 1588, 1985, 2030, 2779, 3970, 4060, 5558, 7940, 11116, 11513, 13895, 23026, 27790, 46052, 55580, 57565, 80591, 115130, 161182, 230260, 322364, 402955, 805910, 1611820]

約数ペア:

[(1, 1611820), (2, 805910), (4, 402955), (5, 322364), (7, 230260), (10, 161182), (14, 115130), (20, 80591), (28, 57565), (29, 55580), (35, 46052), (58, 27790), (70, 23026), (116, 13895), (140, 11513), (145, 11116), (203, 7940), (290, 5558), (397, 4060), (406, 3970), (580, 2779), (794, 2030), (812, 1985), (1015, 1588)]